Lenovo E93 Especificações descarregar pdf (Página 112)

CAUTION:

Theheatsinkandmicroprocessormightbeveryhot.Beforeyouopenthecomputercover,turnoff

thecomputerandwaitseveralminutesuntilthecomputeriscool.

Toreplacethesystemboard,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect

allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Removethecomputercover.See“Removingthecomputercover”onpage82.

3.Laythecomputeronitssideforeasieraccesstothesystemboard.

4.Removetheharddiskdrivefromthechassis.See“Replacingtheharddiskdrive”onpage84.

5.Removethepowersupplyassemblyfromthechassis.See“Replacingthepowersupplyassembly”

onpage93

6.RemoveallmemorymodulesandPCIcardsthatarecurrentlyinstalled.See“Installingorreplacinga

memorymodule”onpage105

and“InstallingorreplacingaPCIcard”onpage100.

7.Carefullytakenoteofthelocationsofallcableconnectionsonthesystemboardanddisconnectall

thecables.See“Locatingpartsonthesystemboard”onpage71.

8.Removetheheatsinkandfanassemblyfromthefailingsystemboard.See“Replacingtheheatsinkand

fanassembly”onpage96.

9.Removetheeightscrewsthatsecurethesystemboard.

Figure42.Removingtheeightscrewsthatsecurethesystemboard

10.Carefullyslidethesystemboardsothatitcanbereleasedfromthemountingstudsthatsecurethe

systemboardinplace.

11.Liftthesystemboardoutofthechassis.

108ThinkCentreE93HardwareMaintenanceManual

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Lenovo E93 Especificações Página 112